I don't have a clip, but it saw it on the Cleo awards around 1992 or so. It was done in Canada and showed a tough looking, shirtless, black male from the waist up just starring into the camera. Oh, and it was in black and white too. The captions appeared on the screen one at a time and faded out as the next one came on. It described a violent crime that had occurred. Then the background and criminal history of the criminal sought. It then described the manhunt that ensued. Then it told of how an officer pursued and caught the criminal. It told of the trial and of the sentance the criminal is now serving. Then it simply stated, "That officer was (his name), "Shown Here". This was definitely the most powerful commercial I have ever seen as I was sure (intended by the director I'm sure) that the criminal was being shown and not the officer. I't definitely made me think about stereotypes.
Anyways, thats my favorite.